When I lived in NJ, I used to go to the Fanex horror con in the Baltimore area.
When they had stars, like Ingrid Pitt/Veronica Carlson from Hammer films, they were packed.
When they tried doing a fan driven con without stars, no one came.
Maybe a DS event could be combined with a Hammer
or Star Trek event, since there's so much fan crossover.
Trek could really work, KL Scott was on Next Gen, and she also did Space: 1999. Â
David